PERIODIC TABLE

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Across
  1. 2. A row in the periodic table
  2. 4. - bent into shape
  3. 8. A mixture where one substance dissolves in the other
  4. 9. These particles are positive
  5. 11. Number of protons in an element is the atomic ____
  6. 12. Center of an atom
  7. 13. A column in the periodic table
  8. 15. - Iron, gold, silver
  9. 17. Metals conduct heat and ____ well
  10. 18. These elements include fluorine, chlorine, bromine, iodine, and astatine
Down
  1. 1. A ____ reaction is when a set of substances undergo a chemical change and form a different substance
  2. 3. - hold two electrons
  3. 5. Isotopes of the same element have a different number of these
  4. 6. A metal that combines two or more elements such as bronze or steel
  5. 7. Negatively charged particle
  6. 10. - neither metals nor non-metals
  7. 14. The basic building block of all matter
  8. 15. When a solid turns into a liquid
  9. 16. - Solid state of water